Roof-joint for vent-pipes.



'PATBNTED JUNL2;,1903.1 1.. worsen. ROOPJOINT FOR vmq'r mns.

APPLICATION FILED OUT. 20, 1902.

no MODEL.

fizeme/ m: yomns FETERS 00.. PHOYO-LITHQ, WASHINGTON u. c.

UNITED STATES i Patented J' une 2, 190 3.-

PATENT QFFIGE. I

ROOF-JOINT FOR VENT-PIPES.

SBECIFICATION forming part of Letters Patent No. 730,089, dated'June 2, 1903. Application filed October 20, 1902. Serial No. 127,949. (No model.)

T0 at whom it may concern:

Be it known that 1, JAMES BROPSON, a citizen of the United States, and a resident of Cleveland county of Cuyahoga, State of Ohio, have invented certain new and useful Improvements in Roof-Joints for Vent-Pipes, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which itappertains to make and use the same.

'My invention relates to improvements in p the clamping-ring by means of which the sheet-lead packing is secured thereto and with the details of construction and combination and arrangement of parts, as hereinafter described, shown in the accompanying drawings, and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional view of a roof and ridge, showing the position of the vent-pipe and its joint connection with the roof. Fig, 2 is a longitudinal section of vent-pipe, showing theroof connections enlarged from Fig. 1. 'Fig. 3 is a detail view of a portion of the vent-pipe and the conical ring integral therewith. Fig. I is a similar view of the exterior clampingring, Fig. 5 is asectionalview of roof, show ing socket-joint connection for the vent-pipe.

In the views, 1 is the vent-pipe; 2,aconical flange integral thereon, which fits closely upon the roof 3 and conforms to the angle of the roof. Over this flange is placed a sheet of rubber 4 and a sheet of lead 5, which rise about the flange and fit it closely. To thoroughly compress the packing-sheets about the flange and prevent leakage, an exterior ring 6, spreading conically at the bottom, encircles the flange and packing where it rises upon the flange and is adjustably secured in the following manner: 7 represents recesses inthe upper edge'of the integral flange,which are provided with inwardly and downwardly slanting inner faces 8. Set-screws 9 pass I through lugs 10 on the outer ring and are inserted in the recesses 7 when the ring has been placed over the flange and packingsheets. It will readily be seen that as the set-screws bear upon the inclined surfaces 8 they will force the ring down upon the packing -'sheets"and flange, or the ring can be driven down by the hammer and secured afterward by the set-screws, so that if it becomes slightly loose it can be immediately tightened without any waste of time or the applicatio n of molten lead or a calking-tool. This is a decided advantage, since in calking joints which contain sheet-lead there is great danger of breaking or tearing the lead. This joint, however, being formed entirely by compression, there is no danger of breaking any part of the packing.

It is understood that the vent-pipe can be made straight and the flange at right angles therewith, or the flange may be made at any angle desired to conform to the angle of the roof.

In Fig. 5 is clearly shown a socket-joint for the roof connection of the vent-pipe, by means of which it can readily be adapted to any angle of the roof. Here 12 is a metal plate, which is dished to rec'eiv'ea curved projection 18 on the u-udersurface of the flange 2. An opening in this plate and the opening in the roof are shown large enough to aflord some play to the pipe, so that the angle can be varied at pleasure, thus forming the joint with greater ease than if the engaging surfaces are flat. The outer sleeve 6 and the rubber and the lead coatings are then atthe roof, packing-sheets encircling said flange, I

upon the conical surface thereof, a ring encircling said flange and conical portion of the packing-sheets, and means for securing and forcing down the ring upon said sheets, substantially as described. 1 I

2. In a roof-joint for a vent-pipe, the combination with the pipe and a conical flange integral therewith, of a packing-sheet upon said flange, a ring encircling said flange and packing-sheet, and means for securing the ring to the flange and for compressing the ring upon the packing-sheet consisting of recesses in the flange provided with inwardly and downwardly inclined inner faces, and set-screws in the ring adapted to engage the said inclined faces, su bstantiallyas described.

3. In a roof-joint for a vent-pipe the combination with the roof provided with an opening, and the pipe provided with a flange having a curved projection thereunder, of a dished plate in which the curved surface of the flange rests, arranged between the flange 

